CN220665470U - Electrode frame for electrolytic cell, electrolytic cell polar plate and electrolytic cell for hydrogen production - Google Patents
Electrode frame for electrolytic cell, electrolytic cell polar plate and electrolytic cell for hydrogen production Download PDFInfo
- Publication number
- CN220665470U CN220665470U CN202322312025.2U CN202322312025U CN220665470U CN 220665470 U CN220665470 U CN 220665470U CN 202322312025 U CN202322312025 U CN 202322312025U CN 220665470 U CN220665470 U CN 220665470U
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- frame body
- electrode frame
- electrolytic cell
- electrode
- pole
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000001257 hydrogen Substances 0.000 title claims abstract description 20
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title abstract description 12
- 239000013013 elastic material Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000012528 membrane Substances 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 20
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model provides a pole frame for an electrolytic cell, an electrolytic cell polar plate and an electrolytic cell for hydrogen production, wherein the pole frame for the electrolytic cell comprises: the electrode frame body is made of elastic materials with set hardness; the pole frame body is plate-shaped and comprises a front surface and a back surface; the inner edges of the front and back sides of the pole frame body are provided with flanges protruding outwards. The electrode frame body is made of elastic material with certain hardness, the inner edge of the electrode frame body is provided with the outwards protruding flange, the flange replaces a traditional sealing piece, the electrode frame body has the function of the sealing piece, and sealing can be achieved when two electrode frames are pressed and attached.
Description
Technical Field
The utility model relates to the technical field of hydrogen production by water electrolysis, in particular to a pole frame for an electrolytic cell, an electrolytic cell polar plate and an electrolytic cell for hydrogen production.
Background
Hydrogen is used as clean energy with low carbon emission, in a large environment for reducing carbon emission to achieve the aim of carbon neutralization, the water electrolysis hydrogen production technology plays an important role in the field of energy substitution, one important source of hydrogen is electrolytic water generation, an electrolytic tank for producing hydrogen by electrolyzing pure water is an important hydrogen production device, and a key structure of the electrolytic tank is a pole frame and a sealing member.
Currently, the current electrode frame of an electrolytic cell mainly contains diffusion layer and hydrophobic layer components in the electrolytic cell, and is matched with a sealing piece to prevent water and generated hydrogen from leaking. This combined structure is easy for the piezoelectric tank to make:
1. the electrolytic tank belongs to very precise components, the size requirements on the polar frame and the sealing element are extremely high, and due to the combination mode of the polar frame and the sealing element, the accumulated tolerance is increased, and the service life of the electrolytic tank is seriously influenced;
2. the sealing element is inclined, so that poor sealing is caused, the requirements on the process and personnel are high in the production process, and the efficiency is low;
3. particularly, in the structure of the multi-layer electrolytic tank, the water circulation holes and the gas outlets are easy to be blocked due to the deformation of the sealing element;
4. and the pole frame and the sealing element are matched for use, so that cost is wasted.
Therefore, how to solve at least some of the above problems if the pole frame structure is improved is a matter of concern to those skilled in the art.
Disclosure of Invention
The utility model aims to provide a pole frame for an electrolytic cell, an electrolytic cell polar plate and an electrolytic cell for hydrogen production, which can improve the structure of the pole frame and solve at least part of problems in the prior art.
In order to achieve the above object, the present utility model provides a pole frame for an electrolytic cell, comprising:
the electrode frame body is made of elastic materials with set hardness;
the pole frame body is plate-shaped and comprises a front surface and a back surface;
the inner edges of the front and back sides of the pole frame body are provided with flanges protruding outwards.
In an alternative scheme, the pole frame body is provided with a plurality of through screw holes, and the front surface and the back surface of the pole frame body at the periphery of the screw holes are respectively provided with a screw hole flange protruding outwards.
In the alternative scheme, the pole frame body is rectangular or circular, the screw holes are distributed on the periphery of the pole frame body, and the screw holes are symmetrically arranged.
In an alternative scheme, the pole frame body is provided with two water/air holes penetrating through the pole frame body, the water/air holes are provided with groove structures extending to the inner edge of the pole frame body on the front surface, and the water/air holes are isolated from the inner edge of the pole frame body on the back surface.
In an alternative scheme, the two water/air holes are arranged symmetrically with respect to the pole frame body as a center or axially.
In an alternative scheme, the pole frame body is also provided with two exhaust holes penetrating through the pole frame body, and the two exhaust holes are symmetrically arranged relative to the pole frame body as a center or axisymmetrically arranged.
In an alternative, the outwardly projecting flange is a closed ring surrounding the water/air passage and the air vent.
In an alternative scheme, the pole frame body is made of fluororubber, fluorine silica gel or ethylene propylene diene monomer rubber.
The utility model also provides an electrolytic cell polar plate, which comprises:
the front and the back of the two pole frames are mutually attached and fixed;
and the membrane electrode is clamped between the two electrode frames, and the circumference of the membrane electrode is fixedly connected with the electrode frames.
The utility model also provides an electrolytic tank for hydrogen production, which comprises the electrolytic tank polar plate.
The utility model has the beneficial effects that:
the electrode frame body is made of elastic material with certain hardness, the inner edge of the electrode frame body is provided with the outwards protruding flange, the flange replaces a traditional sealing piece, the electrode frame body has the function of the sealing piece, and sealing can be achieved when two electrode frames are pressed and attached;
further, since the inner edge flange has a certain height, the height forms a 'empty' accumulation after the multiple layers are overlapped, when the screw is locked, the situation that the middle is high and the four corners are low can occur, thus deformation can be caused, and the flange is arranged at the periphery of the screw hole to resist the deformation.
Drawings
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.
FIG. 1 is a schematic diagram showing a front structure of a pole frame for an electrolytic cell according to an embodiment of the present utility model.
FIG. 2 is a schematic view showing a back surface structure of a pole frame for an electrolytic cell according to an embodiment of the present utility model.
FIG. 3 is a schematic view of an electrolytic cell plate according to an embodiment of the present utility model.
Reference numerals illustrate:
1-a first groove structure; 2-a second groove structure; 3-a first vent; 4-a second vent; 5-inner frame; 6-flanges; 7-screw holes; 8-a screw hole flange; 9-a first water/air passage hole; 10-second water/air vent; 12-membrane electrode; 13-a first pole frame; 14-a second pole frame; 15-a water inlet channel; 16-a first hydrogen channel; 17-oxygen channel; 18-a second hydrogen channel.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples. The advantages and features of the present utility model will become more apparent from the following description and drawings, however, it should be understood that the inventive concept may be embodied in many different forms and is not limited to the specific embodiments set forth herein. The drawings are in a very simplified form and are to non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.
It will be understood that when an element or layer is referred to as being "on," "adjacent," "connected to," or "coupled to" another element or layer, it can be directly on, adjacent, connected, or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present utility model.
Spatially relative terms, such as "under," "below," "beneath," "under," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a pole frame for an electrolytic cell, comprising:
the electrode frame body is made of elastic materials with set hardness;
the pole frame body is plate-shaped and comprises a front surface and a back surface;
the inner edges of the front and back sides of the pole frame body are provided with outwardly protruding flanges 6.
Specifically, the pole frame body may be rectangular or circular, and referring to fig. 1 and 2, in this embodiment, the pole frame body is rectangular. The electrode frame body is plate-shaped (can refer to a photo frame structure, a circle of frames are arranged on the periphery, the middle is hollow), and the middle inner frame 5 is used for installing a necessary diffusion layer and a necessary hydrophobic layer of the electrolytic cell. The pole frame body comprises a front face and a back face which are opposite, wherein fig. 1 is a structure diagram of the front face, and fig. 2 is a structure diagram of the back face. The inner edges of the front and back sides of the pole frame body are provided with flanges 6 protruding outwards. After the electrolytic tank is assembled and then is screwed and locked through a plurality of screw holes 7, the arranged flange 6 has a certain height and elasticity, and is tightly attached to the upper cover plate to form a seal, and the flange 6 replaces the traditional sealing piece, so that the two-in-one function is realized. According to different using conditions, the material of the pole frame body can be fluororubber, fluorosilicone gel or ethylene propylene diene monomer rubber with certain hardness.
In this embodiment, the frame of the pole frame body has a plurality of screw holes 7 that are vertically penetrated, and the front and back of the pole frame body at the periphery of the screw holes 7 have screw hole flanges 8 that are protruded outwards. In this embodiment, all around of the pole frame body are distributed with the screw holes 7, set up 8 screw holes 7 altogether, wherein four screw hole flanges 8 meet with the flange 6 of the inner edge of the pole frame body, and 4 other screw holes set up in four contained angles departments of rectangle frame, in this embodiment, 8 screw holes symmetrical arrangement. Since the inner edge flange 6 has a certain height, this height forms a "void" accumulation after the stacking of the layers, and when the screw is tightened, the middle is high and the four corners are low, which leads to deformation, which is counteracted by the provision of the screw hole flange 8.
In this embodiment, the pole frame body has two water/air holes (a first water/air hole 9 and a second water/air hole 10) penetrating the pole frame body, the water/air holes have a groove structure extending to the inner edge of the pole frame body on the front surface of the machine frame body (the first water/air hole 9 has a first groove structure, the second water/air hole 10 has a second groove structure 2), and the two water/air holes are isolated from the inner edge of the pole frame body on the back surface by the groove structure and are communicated with the cavity (the pole frame body and the cover plate thereon form the cavity).
In this embodiment, the pole frame body further has two exhaust holes (a first exhaust hole 3 and a second exhaust hole 4) penetrating through the pole frame body, the two exhaust holes are symmetrically arranged or axisymmetrically arranged with respect to the pole frame body, and the two exhaust holes are vertical holes.
Referring to fig. 1 and 2, in the present embodiment, the flanges 6 of the inner edges of the front and rear surfaces of the pole frame body are closed ring-shaped, surrounding the water/air holes and the exhaust holes, to achieve complete sealing.
Referring to fig. 3, a membrane electrode 12 is required between two electrode frames in the electrolysis mechanism for separating hydrogen and oxygen generated by electrolysis of water; and both sides of the membrane electrode 12 need to be sealed; two identical pole frames, a first pole frame 13 and a second pole frame 14 are matched for use, and the front surface of one pole frame is matched with the back surface of one pole frame for use, so that the two-in-one pole frame is formed.
The front surface of the two-in-one polar frame is provided with a flange 6, and the polar frame material is an elastic material, so that a membrane electrode clamped in the flange 6 of the inner frame of the two polar frames forms a seal under the action of fastening force to replace the traditional sealing piece; further, because the influence of the thickness tolerance of the pole frame on the performance of the electrolytic tank is very large, the thickness of the actually required pole frame can be controlled very accurately under the condition that the locking force of the screw can be regulated because the two-in-one pole frame has certain elasticity, so that the manufacturing difficulty of the pole frame is reduced to a great extent, and better performance is obtained.
After the two pole frames are attached, the corresponding water/air through holes and the exhaust holes are communicated with each other to form a water inlet channel 15 and an oxygen channel 17 (the two channels are formed by butting the water/air through holes and are respectively used for water inlet and oxygen discharge), so that water circulates at the lower side of the membrane electrode 12; the first hydrogen passage 16 and the second hydrogen passage 18 (both passages are formed by butting exhaust holes for the exhaust of hydrogen) form a gas output generated at the upper side of the membrane electrode 12.
Referring to fig. 3, another embodiment of the present utility model further provides an electrolytic cell plate, including two above-mentioned electrode frames, where the front and back surfaces of the two electrode frames are attached and fixed to each other; and the membrane electrode is clamped between the two electrode frames, and the circumference of the membrane electrode is fixedly connected with the electrode frames.
The utility model also provides an electrolytic tank for hydrogen production, which comprises the electrolytic tank polar plate.
According to the utility model, the pole frame body is made of a material with certain hardness and certain compression elasticity, and the flange protruding outwards is arranged at the inner edge of the pole frame body, so that the flange replaces a traditional sealing piece, the pole frame body has the function of the sealing piece, and when two pole frames are pressed and attached (the front surfaces and the back surfaces of the two pole frames are oppositely attached), the sealing can be realized.
Further, since the inner edge flange has a certain height, the height forms a 'empty' accumulation after the multiple layers are overlapped, when the screw is locked, the situation that the middle is high and the four corners are low can occur, thus deformation can be caused, and the flange is arranged at the periphery of the screw hole to resist the deformation.
The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (10)
1. A pole frame for an electrolytic cell, comprising:
the electrode frame body is made of elastic materials with set hardness;
the pole frame body is plate-shaped and comprises a front surface and a back surface;
the inner edges of the front and back sides of the pole frame body are provided with flanges protruding outwards.
2. The electrode frame for an electrolytic cell according to claim 1, wherein the electrode frame body has a plurality of screw holes therethrough, and both the front and rear surfaces of the electrode frame body at the outer periphery of the screw holes have screw hole flanges protruding outward.
3. The electrode frame for an electrolytic cell according to claim 2, wherein the electrode frame body is rectangular or circular, the screw holes are distributed on the periphery of the electrode frame body, and the screw holes are symmetrically arranged.
4. The electrode frame for an electrolytic cell according to claim 1, wherein the electrode frame body has two water/air holes penetrating through the electrode frame body, the water/air holes having a groove structure extending to an inner edge of the electrode frame body at a front surface of the electrode frame body, the water/air holes being isolated from the inner edge of the electrode frame body at a back surface of the electrode frame body.
5. The electrode frame for an electrolytic cell according to claim 4, wherein the two water/air holes are arranged symmetrically with respect to the electrode frame body as a center or axially symmetrically.
6. The electrode frame for an electrolytic cell according to claim 5, wherein the electrode frame body further has two vent holes penetrating the electrode frame body, and the two vent holes are arranged in a central symmetry or an axial symmetry with respect to the electrode frame body.
7. The electrode frame for an electrolytic cell according to claim 6, wherein the outwardly projecting flange is a closed ring shape enclosing the water/air passage hole and the air discharge hole.
8. The electrode frame for an electrolytic cell according to claim 1, wherein the electrode frame body is made of fluororubber, fluorosilicone gel or ethylene propylene diene monomer rubber.
9. An electrolytic cell plate comprising:
two pole frames according to any one of claims 1-8, wherein the front and back surfaces of the two pole frames are mutually attached and fixed;
and the membrane electrode is clamped between the two electrode frames, and the circumference of the membrane electrode is fixedly connected with the electrode frames.
10. An electrolyzer for producing hydrogen comprising the electrolyzer plate of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322312025.2U CN220665470U (en) | 2023-08-28 | 2023-08-28 | Electrode frame for electrolytic cell, electrolytic cell polar plate and electrolytic cell for hydrogen production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322312025.2U CN220665470U (en) | 2023-08-28 | 2023-08-28 | Electrode frame for electrolytic cell, electrolytic cell polar plate and electrolytic cell for hydrogen production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220665470U true CN220665470U (en) | 2024-03-26 |
Family
ID=90328801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322312025.2U Active CN220665470U (en) | 2023-08-28 | 2023-08-28 | Electrode frame for electrolytic cell, electrolytic cell polar plate and electrolytic cell for hydrogen production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220665470U (en) |
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2023
- 2023-08-28 CN CN202322312025.2U patent/CN220665470U/en active Active
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